◎ 题干
Li Fang is always ready to help others when they are in trouble and he never         their request.
A.turns up B.turns over C.turns in D.turns down
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Li Fang is always ready to help others when they are in trouble and he nevertheir request.A.turns up B.turns over C.turns in D.turns down…”主要考查了你对  【动词短语】【动词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。